Robert had his own instincts while sleeping, turning, wrapping his arms around the Swede to pull him to his chest. It was how he laid with all his lover's, not that Erik was one yet, protectively, face tucked into the top of Erik's head. He also got cold and eventually pulled the throw off the couch and over them, still mostly asleep and not registering who was there with him, pinned between his body and the back of the couch. That's where he stayed too, sleeping in and relaxing since no one had wanted anything from him so he had set no alarms to wake up by. Though, once the sun got too high that might wake him if Erik didn't wake first.